Product Description:

The MAC025C-0-QS-4-E/040-A-0/WI668LV is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified as a motor for analog drives, it converts electrical commands from a compatible drive amplifier into proportional shaft torque and speed. This operation supports precise positioning and velocity control in automated machinery, including packaging stations, pick-and-place units, and light conveyor axes. The motor’s compact format also suits installations where available mounting space and cable clearance are limited.

The motor relies on natural convection for cooling, allowing heat to dissipate through the housing without a forced-air system. Adequate clearance around the housing is necessary so rising air can carry heat away during continuous operation. Rotor position is reported by an internal incremental encoder, which supplies pulse data for closed-loop speed regulation and repeatable homing routines. The motor has a size of 025 and a length of C, providing the corresponding mechanical envelope and active stator length for this MAC model. Power conductors reach the stator through a power connector on side A, allowing the cable to be routed from that side of the housing. Proper cable support can reduce strain at the connector when the motor is installed on an axis that experiences frequent acceleration or vibration.

The feedback arrangement supports the signal requirements of compatible analog Rexroth drive amplifiers. Its current and feedback characteristics accommodate proportional control stages that use a ±10 V command signal, while the encoder supplies the position pulses needed by the control loop. The motor has no blocking brake, so an external clamp or drive-generated holding torque must secure the axis when stationary. Because drive-generated torque is unavailable after power is removed, gravity-loaded or otherwise unstable axes require an independent mechanical holding method. The absence of an onboard brake reduces the number of brake conductors that must be routed to the motor. Couplings and attached machine components should be aligned carefully to avoid adding excessive radial loading to the shaft during operation.